Improvement in locomotive head-lights



JOSEPH BRIGGS, WILLIAM H. BRIGGrS, AND ARTHUR E. BRIGGS, OF NEW- PORT, KENTUCKY.

IMPROVEMENT IN LOCOMOTIVE HEAD-LIGHTS.

`Specification forming part of Letters Patent No. 142,204, dated August 26, 1873; application filed January 29,1873.

To all whom it may concern:

Be it known that we, J osEPH BRIGGS, WILLIAM H. BRIGGs, and ARTHUR E. BRIGGs, all of Newport, Campbell county, State of Kentucky, have invented a certain new and useful Improvement in Head-Lights for Locomotives, of which the following is a specication:

The first part of our invention, relating to a lamp for a locomotive head-light, the burner and reservoir of which are connected by a divisible neck to facilitate repairs, consists of a novel device for securing the two parts of the neck together. Our invention further consists in the peculiarity of the connection between the connecting-neck of the burner and the reservoir, whereby a soldered joint between these parts of ahead-1i ght is avoided.

Figure I is a vertical section of a head-l light embodying our invention. Fig. 2 is an axial section of the burner, part of the reservoir, and connecting-neck, also illustrating in an enlarged form our invention. Fig. 3 illustrates detached perspective views of the joint in the neck.

A is the outer case of the head-light, and B the sliding detachable bottom of the same. To this slide B all the operative parts of the lamp are usually attached. (l is the reflector, and D the lamp-reservoir. The reliector is firmly securedto the reservoirbyapost,E, and the reservoir -is rmly secured to the slide B by postsF. The reservoir, as usual, extends around the sides of the reflector, as shown.

We provide in the neck, which connects the reservoir with the burner, a detachable joint, which enables the burner to be with- V drawn from the head-light for repairs without the removal oi? any other part of the same.

We construct this joint, as shown in Figs. 1 and 2, which is as follows: G is the burner. The base g of the same is connected to the bottom of the reservoir by the neck B, which We construct in two parts or divisions, h 11,.V

Upon the part h a iiange, a, is formed, and an aperture, b, is provided through this part of the neck, the enlarged portion of which is screw threaded, as shown. Through both sides of the part h of the neck apertures are provided, through which passes the hollow tighteningbolt I, (which `makes the joint,) the screw-threaded ends of which fits the female screw in the part li. Perforations i provide for the passage of fluid through this bolt from the reservoir. Gaskets J may be used under the flange a and the head of the bolt I to secure a tight joint. A pin, K, is firmly secured to the part h', the outer end of which ts a notch, a', cut in the flange a, and serves to prevent the burner from being reattached after removal other than in the right position.

To remove the burner, without disturbing the reflector or reservoir, it is simply necessary to take out the glass chimney L and the customary outer case M of the burner through the mouth of the reflector. By then simply detaching the bolt I from the parts h h the burner can be readily removed through the4 bottom of the reflector for repairs.

The neck H may be attached to the reservoir by soldering, as is customary, but in order that it may be removed bodily, when desired, from the reservoir, at any time, we attach it by the following device: A female thread is formed in the end of the part h, into which a connecting-bolt, R, is tted,

which passes through the reservoir and serves to connect the reservoir and neck together. A hollow post, S, surrounds the bolt R and lits snugly in between the plates of the reservoir to prevent collapse under the pressure of the bolt R.

Perforations through the post S and bolt R, as shown, provide for the passage of the illuminating-fluid, and gasket T may be used to secure a tight joint.

We claiml. The combination of the shouldered and internally screw-threaded part 7L a and perforated part h of the vneck with the tubular tightening-bolt I, substantially as specified.

2. In combination with the burner G, connecting-neck H, and reservoir D of a locomotive head-light, the perforated bolt R and post S, connected, and operating substantially as and for the purpose specified.

In testimony of which invention we hereunto set our hands. j

JOSEPH BRIGGS. WILLIAM H. BRIGGS. ARTHUR E. BRIGGS.

Witnesses:

FRANK MILLWARD, W. A. CorTER. 

